Valve.



PATENTED JAN. so, 1906. M. D. LARKIN.

VALVE.

. APPLIOATION FILED O0T.'15.1903.

, UNITED STATES MAURICE D. LARKIN, or DAYTON, omo.

VALVE:

- Specification of Letters Patent.

Patented Jan. 30,1906.

Application filed October 15, 1903. Serial No. 177,128.

To all w/iom it may concern.-

Be it known that I, MAURIoE D. LARKIN, a

. citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented a new and useful Improvement 1n Valves, of which the following is a specification, reference being had to the:

' accompanying drawings, forming part there- I X X of Fig. 1..

of, and in which the same characters of refer ence; designate like parts.

My invention relates to improvements in valves, and more especially to that valve for use under high pressure, such as in connection with fire hose, lire engines, hydraulic machinery,'&c. and it consists in the means, constructions, and combinations of the parts hereinafter described,and briefed in each of the appended claims.

vIn the drawings, Figure 1 is a central verti cal sectional view on line X X of Fig. 2. Fig. 2 is a central vertical sectional view on line Fig. 3 is a plan view of the movable portion'of the valveQ Fig. 4 is an enlarged plan view of one of the adjustingnuts. Fig. 5 is an enlarged bottom plan view of the spring member, and Fig. 6 is an enlarged elevation view of the adjusting-screw.

In said drawings, 10 represents the body of the valve, having passage-way 11 therethrough, and across said p ssage-way is revolubly mounted a cylindrical member 12, having opening 13 therethrough, adapted at tinres to register with said opening 11. Said member 12 is provided with trunnions 14, projecting from opposite ends and provided with suitable bearings in opposite walls of the valve-casing, and upon the ends of either or both of said trunnions, projecting beyond the valve-body, is mounted a handle or operating-bale 15, by means of which member 1.2 may be turned, so as to turn on or shut off the flow of water through opening 11in valvebody'10. The member 12 is of uniform diameter throughout its length, and the cavity in valve-body 10, in which said member 12 is revolubly-mounted, is also of uniform diameter and loosely fits the periphery and ends of said member 12.

In the periphery of member 12, at an an gle to the opening 13 therethrough, is formed acylindrical' cavity 16, within which is slidably mounted a cylindrical member 17, having on its. outer surface a plurality of raised rings 18 and 19, conforming to and closely fitting the curved wall of the cavity within which member 12 is revolubly mounted, the

ring 18 being slightly larger than the diameter of the opening 11 and being adapted to close the mouth of opening 11, leading from the valve-body 10. Said member 17 is prevented from turning in said opening 16 by pins 20, secured at a plurality of points about the edges of cavity 16 and fitting into recesses in the outer surface of said member 17, thus forming a suitable guide for permitting only an outward movement of said member 17 in a radial direction from the longitudinal center of member 12. The under surface of member 17 is provided with a cavity 21, and

between the bottom of cavity 16 and the top of cavity 21' is a spring 22, pressed against the bottom of cavity 16 by a screw 23, threaded through said member 17, whereby said member 17.. is not only spring-pressed against the curved surface of the cavity in valve;body 10, in which is mounted the member 12, but is adjustable therein by means of said screw 23, to compensate for wear as well as to increase thetension of the spring 22 whenever necessary to prevent leakage, said screw 23 being adjustable by means of a screwdriver introduced through the outlet-openin -11 in valve-body 10, which is surrounded y. thejustment may be simply and readily accomplished without removing any portion of the valve, as .well as when the valve is in use, sim ply by shutting off the water which brings screw 23 centrally into the nozzle end of the opening 11. As shown in Fig. 6, the screw 23 is povided on its lower end with a small portion 26, unprovided with threads, and the lower surface of this portion 26 bears upon thc s pring 22. This construction prevents the screw 23 from being raised into its threaded opening through member 17 sufficiently to contact with the inner wall of the cavity in valve body 10, in which member 12 is mounted, and in this respect the ring 19 on member 17, which surrounds said screw =threaded opening for screw 23, indicates to the operator by the relative positions of the head of screw 23 and the outer surface of ring 19 about how much more turning the screw 23 will stand without coming out of its opening and into cavity 16, or about how much more pressure the spring 22 will stand before a new one should be inserted.

In opposite endsiof member 12 and surrounding its trunnions 14 is a cylindrical cavity 30, leaving a relatively narrow ring 31 I re near the periphery of said member 12 at op- Frictionot the valve normallynis well under positc ends. surrounding each of said trunnions 14 a ring 32, of hard rubber or some other suitable material, adapted to bear against the relatively narrow inwardly-projecting ring 33 from the trunnion-bearing and projecting into the cavity of valvebody 10, in which member 12 is mounted. From the outer surface of the opposite ends of valvebody 10 and surrounding said trunnions 14 are screwthreaded openings 40, extending a portion of the Way through the walls of said valve-bod y 10, and each of said openings communicates with a relatively thin cavity 41 of larger diameter in said walls of said valve-body 10. These cavities 41 are for the purpose of rendering somewhat pliable the portions of the valve-body 10, having said rings 33 and the bearings for said trunnions 14, and said pli able ortions are acted upon by nuts 42, threaded into said openings and loosely surrounding said trunnions 1 1, said nuts -12 being adjustable by slots 43 in the outer ends of said nuts for the purpose of causing said rings 33 to bear against the opposite ends of member 12, represented by said rings 32, to compensate for any wear and at the same time to avoid leakage, said rings 32 being placed upon the ends of member 12 to avoid the disintegrating friction between like metals,

By the'construction ofmy apparatus and of the embodiment of the principles of m y invention valves are rendered readily and easily operative even under the highest possible pressure, whereas with other constructions they are packed so tight that they are hard to operate even when not under pres ,sure, and when under pressure they must be opened by the application of a long lever or.

by hammering the short operating-lever with which the valves are conveniently provided.

The preferred form of spring 22 is that of an umbrella-shaped disk of spring metal having a plurality of slots 50 extending from the periphery radially toward the center thereof, the convex side contacting with the screw 23 at its center and the concave side being toward the bottom of cavity 16 in member 12, with the edges of said spring-disk 22 resting upon the bottom of said cavity 16.

The absence of the usual packing necessary with other valves peculiarly adapts this valve for high-pressure service, such as for fireengines,as w ell as for use with chemicals of a more or less corrosive nature, in which latter case the difierent parts of the valve would be made of those well-known substances whiclrbest resist. the action of such chemicals.

The form of the arts and their construction is suchthat tie manufacturing cost is reduced to the minimum consistent with the highest efficiency, and at the same time the In each of said cavities 30 and i pressure, is almost wholly eliminated; but a relatively small friction-surface being provided only at such point or points where leakage is liable to occur, the remaining portions being free from contact with each other, the adjustment for wear being so great that the construction provided by my invention is highlyelficient, while other valves of like sur face. have been worn out and discarded.

Having now so fully described my invention that others skilled in the art may freely make and use the same when thisexclusive grant shall cease to operate, what I claim, and desire to secure by LettersPatent, is

1. in a valve, the combination of a valvebody, having an opening therethrough, a valve member movably mounted in said valve-body, so that said opening may be opened or closed thereby, an operating projection on said member passing through a wall of said valvebody, said wall of said valve-body being formed of a plurality of integral layers with an intervening cavity, and means mounted upon the'outer of said layers and adapted to press the inner of said layers against. a portion of said member surrounding its operating projection, substantially as specifiei'l.

2. In a valve, the combination of a alvebody, having an opening therethrough, a valve member movably mounted in said valve-body, so that said opening may be opened or closed thereby, an operating projection on said member passing through a TOO wall of said valve -body, said wall of said valvc body being formed of a plurality of integral layers with an intervening"cavity, and

a screw threaded into the outer of said layers and adapted to press the inner of said layers against portion of said member surround ing said operating projection, substantially 3. Tu a va-h the combination of a valvebody, having an. opening therethrough, a valvemember removably mounted in said valve-body so that said opening may be opened or closed tliereby,an operating projection on said member passing through a wall of said valve-body, said wall of said valve-body being formed of a plurality of intogral layers with an intervening cavity," and ahollow screw surrounding said operating projection and threaded through the outer of said layers for pressing the inner of said layers against a portion of said member surrounding said operating projection, substantially as specified.

4. In a valve the combination of a valvebody, having an opening therethrough, a valve member removably mounted in said valve-body so that said opening may be. opened or closed thereby, an operating projection on said member passing-through a wall of said valve-body, said wall ofsaid [39 ei eei 8 valve-body being removablysecured to said 'iof each of said op osite walls and adapted to valve-body and formed of a plurality of integrai layers with an intervening cavity, and means mounted upon, the outerof said layers and adapted to press'the inner'of said layers against a portion of said member surround ing its operating projection, substantially as specified. i

5. In a valve, the combination of a valve-. body, having an opening therethrough, a-

valve member'movably mounted in said valve-body so that said opening may be opened or closed thereby, an operating rojection on said member passing throug a 1 Wall of said valve-body, saidwall of said valve-body being removably secured to said valve-body and formed of a plurality of integral layers with an intervening cavity, and a screwthreaded into the outer of said layers 2 andadapted to press the inner of said layers against a portion of said member surrounding said operating projection, substantially as specified.

6. In a valve, the combination of a valve- 2 5 body, having an opening therethrough, a valve member movably mounted in said valve-body so that said opening may'be opened or closed thereby, an operating rojection on said member passing throng a 0 wall of: said valve-body, said wall 'of said ,valve bodybeing removably secured to said I valve-body and formed of a plurality of inte ral layers with an intervening cavity, and a ollow screw surrounding said o crating 5 projection and threaded through t e outer.

of said layers for pressing the inner of said layers against a portion of said member surrounding said operating projection, substantially as specified. I i V v o: ,7. 'Inavalvc, the combination of a valvebody, having an opening therethrough, a

valve member movably mounted in said valve-body, so that said opening. may be opened or closed thereby, an. operating pro- 5 jection on each of the opposite ends of said member and passing throu h opposite walls of; said valve-bod ,said Wa ls of said valve- I body-each being ormed of a plurality of in-.

tegral layers with an intervening cavity, and

means mounted upon the outer of said layers of each of said walls and adapted to press.

portions of said member surrounding said opcrating pro'ection between said inner layers, substantialiy as specified. l

8. In a valve, the combination of a valvebody, having an opening .therethrough, a

valve member movably mounted in said valve-body, so that said opening may be L opened or closed thereby,

jection on each of the opposite ends of said member and assing through opposite walls of said valve- 'od said walls of said valvebody being each ormed of a plurality of integral layers with an intervening cavity, and a screw threaded into the outer of said layers an operating propress the inner 0 said layers of each of said Walls against a portion of said member surrounding each of said operating projections, substantially as specified; 7o 9. In a valve, the combination of a valvebody, having an opening therethroughfla valve member movably mounted in said valve-body so thatsaid 0 eningmay be opened or closed thereby, a purality of oper 7 5 ating rojections on said member passingthroug a corresponding lurality of .Walls of said valvebody, each of said walls of said; valve-body being formed of a plurality of in tegral layers with an intervening cavity, and 8: a hollow screw surrounding each of said operating projectionsand threaded through the outer layer of each of said walls for pressing the inner of said layers againstportions of said member surrounding said oper- 'ating rejections, substantially as specified.

10. n a valve, the combination of a valvebody, having an opening therethrough, a valve member movably mounted in said valve-body so that said oening may be opened or closed thereby, ap urality of operating projections on. said member and passing through a corresponding plurality of walls of said valve-body, one of said walls-of said valve-body being removably secured to 5 said valve-body and each of said wallsbeing formed of a plurality ofintegral layers'with an intervening cavity, and means mounted upon the outer layer of each of saidwalls and adapted to press the inner layer of each of said-walls against portions of said member surrounding said operating projections, substantially as specified. 1 11. Ina valve, the combination of a valvebody, having an opening therethrough, a

valve member movably mounted in said valve-body so that said 0 ening may be opened or closed thereby, a p urality of operating rojections on said member passing throug a corresponding plurality of Walls of said valve-body, one of said .walls of said valve-body'being removably secured to said valve-body and each of said plurality of walls being formed of a plurality of integral layers with an; intervening cavity, and a screw threaded into the outer layer of each of said walls and adapted to press the inner layer of each of said walls against portions of said member surrounding said operating projections, substantially as specified.

- 12. In a valve, the combination of a'valve-- body,- having an opening therethrough, a valve member movably mounted in said valve-body so that said 0 ening maybe opened or closed thereby, a p urality ofoperating rojections on said member passing throng a corresponding lurality of walls of said valve-body, one of 'said'walls of said 'valve-bodg being removably secured to said valve-b0 y and each of said plurality of r34:

walls being formed of a plurality of inte ral layers with\an intervening cavity, and a ollow screw surrounding each of said operating projections and threaded through'the outer layer of each of said walls for pressing the inner layer of each of said walls against portions of said member surrounding each of said operating projections, substantially as specified.

13. In a valve, the combination of a valvebody having inlet and outlet openings and a cavity intermediate said openings; a valve member revolubly mounted in' said cavity and havin a stem; a cylindrical recess in one side ofsai valve member; acylindr'ical member 17 slidably mounted on a guide in said recess ,of said valve member; a spring exerting outward pressure upon said member 17; and means independent of said stem and passing through said member 17 and being accessible through either of said openings for varying the tension of said spring; and an opening 13 through said valve member at angle to the said axis of said valve member, substantially as specified.

14. In a valve, the combination with'a 4 valvebody, havin openings therethrough communicating wit a cavity, a member 12 in said cavity and having trunnions 14 rovidedwith bearings in the walls of said va vebody, an opening 13 through said "member 12, a cylindrical cavity- 16 in oneside of member- 12 and remote from the opposite whereby said member 17 is ends ofsaid member 12, a cylindrica said cavity 16, a relatively narrow rib 18 engage a ortion of the inner wa lof said cavity in sai valve-body and to close the outlet 0 one of the openings through said valve body at times, said cavity 16 and member 17 with its rib 18 being slightly larger in diameter than said first mentioned openings, and manually-adjustable means passing through said member 17 and accessible through'either one of the openings through said valve-body, pressed out wardly, substantially as specific 15; In a valve, the combination of a valvebody having ways therethrough upon opposite sides of a .cavity therein; a member 12 movably mounted across said way and filling said cavity and having a recess in one side thereof; a guide in said recess; a member 17 movably mounted in said recess and slidable upon said guide; said recess and'member 17 being relatively smaller than the length of said valve-body, and said member 17' being adapted to close one of said ways through said Valve-body; and means exposed upon member 17 slidably mounted upon guides 20 in the outer surface of said member 17 and accessible through the way closed by said member 17, whereby the relative positions of said members 12 and 17 may be adjusted *to compensate for variations in manufacture and for wear, substantially as specified.

16. In a valve, the combination of a valvebody having ways therethrough upon opposite sides of a cavity therein; a member 12 movably mounted across said way and filling said cavity and havin a recess in one side thereof; a guide in said recess a member 17 movably mounted in said recess and slidably mounted upon said guide; said recess and member 17 being relatively smaller than the len th of said valve-body, and said member 17 eing adapted to close one of said ways through said valve-bod y; and a screw threaded. through said member 17 and having its head end exposed upon but below the outer surface of said member 17, said head end of said screw being accessible through the way closed by said member 17, whereby the relative positions of said members 12 and '17 may be adjusted by said screwto compensate for variations in manufacture andfor wear, substantially as specified.

body havin ways therethrough upon opposite sides 0' a cavity therein, amember 12 movably mounted across said iva ys and filling said cavity and having a circular recess in one side thereof; a guide in said recess; a circularmembcr 17 movably'nioiinted in said recess and slidable u on said guide; a spring member 22 confine in said recess by said member 17; said recess and member 17 being relatively smaller in diameter than the length of said valvebody, and said member 1 7 being adapted to close one of said ways through said valve -'body; and a screw threaded through said member 17 and bearing at its inner end upon said spring member 22 and having itshead end exposed upon but below. the outer surface of said member 17, said head end of said screw being accessible through the way closed by said member 17 whereby the relative positions of said mem- -bers 12 and .17 may be adjusted manually by said screw to compensate for variations in manufacture and automatically by said spring member 22 to compensate for wear; substantially as specified.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, at Dayton, Ohio,

this 21st day of May, 1903.

MAURICE D; LARKIN. Witnesses:

Gao. W. KEPLER, IRA C. Konnive. 

